Atourist being chased by an angry bear is running in a straight line toward his car at a speed of 4.00 m/s. the car is a distance d away. the bear is 37.2 m behind the tourist and running at 4.96 m/s. the tourist reaches the car safely. what is the maximum possible value for d?

65

step-by-step explanation:

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.